INTEGRATED NUTRIENT MANAGEMENT (INM) FOR HYBRID MAIZE GROWN IN CALCAREOUS SOIL | ||
| Journal of Soil Sciences and Agricultural Engineering | ||
| Article 4, Volume 3, Issue 3, March 2012, Pages 327-334 PDF (363.44 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jssae.2012.53872 | ||
| Authors | ||
| R.K. Kaleeswari1; J. Prabakaran1; M.R. Latha1; M.M. Mansour2 | ||
| 1Dept. of Soil Sci. and Agric. Chemistry, Tamil Nadu Agric. Univ., Coimbatore, Tamil Nadu, India. | ||
| 2Soils Dept., Fac. of Agric., Mansoura Univ., Mansoura, Egypt. | ||
| Abstract | ||
| Field experiments were conducted at Research Farm of Tamil Nadu Agricultural University, Coimbatore, India for a period of three years (2007-2009) to find out the effect of integrated nutrient management on productivity of hybrid maize. Conjunctive use of 100% NPK + 5 t ha-1 poultry manure recorded significantly highest grain and stover yields. Integration of 100% NPK with FYM and micronutrients viz., zinc and iron recorded higher yield than the treatment that received 100% NPK + poultry manure + ZnSO4 + FeSO4. The lowest yield of 5637 kg ha-1 was recorded in the treatment that received 100% NPK. The uptake of macronutrients by hybrid maize increased with increase in NPK levels. The organic carbon, available N and K status of soil improved due to the application of 100% NPK + 5 t ha-1 poultry manure while the available P status was increased with 75% NPK + 5 t ha-1 poultry manure. The highest benefit : cost ratio (2.52) was obtained with the application of 100% NPK + FYM + ZnSO4 + FeSO4. | ||
| Keywords | ||
| Integrated nutrient management (INM); NPK; Micronutrient; organic manures; Maize; Calcareous soil | ||
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